K22P64M50SF4 Datasheet, PDF (30/59 Pages) Freescale Semiconductor, Inc – K22 Sub-Family Data Sheet

Peripheral operating requirements and behaviors
6.4.1.1 Flash timing specifications — program and erase
The following specifications represent the amount of time the internal charge pumps are
active and do not include command overhead.
Table 19. NVM program/erase timing specifications
Symbol Description
t_hvpgm4 Longword Program high-voltage time
t_hversscr Sector Erase high-voltage time
t_hversblk256k Erase Block high-voltage time for 256 KB
Min.
—
—
—
Typ.
7.5
13
104
Max.
18
113
904
Unit
Notes
μs
ms
1
ms
1
1. Maximum time based on expectations at cycling end-of-life.
6.4.1.2 Flash timing specifications — commands
Table 20. Flash command timing specifications
Symbol Description
Read 1s Block execution time
t_rd1blk64k
t_rd1blk256k
• 64 KB program flash
• 256 KB program flash
Min.
—
—
Typ.
—
—
Max.
0.9
1.7
Unit
Notes
ms
ms
t_pgmchk
t_rdrsrc
t_pgm4
t_ersblk64k
t_ersblk256k
Program Check execution time
Read Resource execution time
Program Longword execution time
Erase Flash Block execution time
• 64 KB program flash
• 256 KB program flash
—
—
45
μs
1
—
—
30
μs
1
—
65
145
μs
2
—
58
580
ms
122
985
ms
t_ersscr
Erase Flash Sector execution time
Program Section execution time
t_pgmsec512
t_pgmsec1k
t_pgmsec2k
• 512 B flash
• 1 KB flash
• 2 KB flash
—
14
114
ms
2
—
2.4
—
ms
—
4.7
—
ms
—
9.3
—
ms
t_rd1all
t_rdonce
t_pgmonce
t_ersall
t_vfykey
Read 1s All Blocks execution time
Read Once execution time
Program Once execution time
Erase All Blocks execution time
Verify Backdoor Access Key execution time
—
—
1.8
ms
—
—
25
μs
1
—
65
—
μs
—
250
2000
ms
2
—
—
30
μs
1
Table continues on the next page...
K22 Sub-Family Data Sheet Data Sheet, Rev. 3, 08/2012.
30
Freescale Semiconductor, Inc.